Floating-reamer support.



0. 0" BLOQD.

FLOATING REAMER SUPPORT.

APPLICATION FILED JULYZB, 1911.

j gg'yfigg, Patented May 28, 1912.

- To all whom it may 1. V

' Be it known that I; Cummc'sglfi Bnoon;

-- mobmav'nrnvma STATES (mu c." BLOOD, or xAL'AnAzoo, moment,

.rnon'rmqammrm surronz.

- Spectlldation of Letters Patent.

Patented May 1912.

Amman: r m-Jul 26 ion-{ nal no. 040,594. l

' a. citizenliof. the United States, residing ht the city of Kalamazoo, connty of Kglamzv "1.00, and State of Michigan, hare invented cerium n w and useful Improvements m -Fl0ating-Reaunor- Supports, oi which; the

following is u. Specificatiom This invention relates to improvements in floating. reamer holders;

The ma'in; ohjeets of this invention are,-

first, to jprovidean improved floating remner holder" lnwhioh the floating movement is free'an'cl smooth. solid. to provide an improved floating rcumct which is simple and economical in' its parts; and the parts are eo'zily assembled.

Further ,0l)je ;ts, on? objects relating to J structural detail-.4. will dvfiuitely appear 2 from the detailed dusonption to follow,

' mm of Iny invention is cleurly illustrated -m the accompanying drawing. tornung a part-0f this invention, in which,

bullying the features of my iyiyeution, the shell 9 being 'shown in longitudinal central section to better disclose 'thr nrmngenumt of the parts withim FigrII is a detail central longitudinal section taken on a line corresponding to line 2--2 of Fig.- 1. the

ream-1w shank and: the shank of he bolder being shownin'fldl lines.- Fig. III'is a detail sectional View ralouron at line corresponding in line 3-3of Fig. II. Fig. IV ism perspectixe view of the coupling member 5. Fig; V in a perspective View of the driven lllt'llllllel' 2. e

In, the drawing. similanreferenee char.- acters mien cosimilar parts throughout the several vie wsfancl' the sectional viewsn're taken looking in the direction of the little" arrows nt'tho ends of the section lines. Referring to the drawing, the driyiug:

Figure I is aside View of a structure em- "with a soc-net for the shank as 3 of a runner.

A suitable srrew 3' is provided for 06!!!- mg the mor 1n thesmket. The dur ng and driven lite-tubers are provided.ovith tongue like .jnwg 4. The couplingmi'ember 5- is provided ,Wilh two pun-s 0 f jawsli, --adapted to receive-the juwsll of the, driving and'drivcn members. The hai tifjjnwsli are disposed trumvorsel relative; to haul? other so that the jrnvs 4 ol the driving and driven mmnl'mrs are supported in nlrtranr.

vurse relation to ouch otheri. 'lh-nring hall. 7 are interposed between the 'jaws of the driving uruldrivteu mrulliers and (her-mu pliu'gmemhrrs, the halls-bring supported by hall holders 8. These ball holders are in the structure illustrated, formed of strips of metal having: their ends folded inwardly, the sh'lp and the infoltlrd ends 'lgcing per funded to receive the balls. (See Fig. 2.3 These ball holders are loosely arrangvd in th jaws, that is, they. are not secured to the jaws. The shell 9 is threaded upon the chuck or driven memher 1 and is provided with an inturnecl- (huge 10 at its outer end which reacts with the annular shoulder 11 on t! i driven member. By adjustment of the shell. the drit'ing and driven ummbth are udjvlsird upon the thrust. hearing pin 12 'lhis thrust )in has )heriral curvedv l l a burs. 'lhese hearing seats arr tllSpflmUtl cur lrully of the dz'hiug and driven members, l.

the central portion of the jaws =1 being. m. away to rvco'zvtthe pin. The coupling; number 5 is prmided with 2 central open- .in;.: through which the thrust hearing pin is arlang'd. the coupling! nn-mlier and pin being movable independently of each other. The sin-ll 9 is Sttt'tllfctl in itshdjuslud poztion by means of the sot svrew 14, the mom her 1 having on nnthrruded portion ltigzwith which the inner end of the screw conch fiVith the parts thus arranged, my imprlwrd tool holder has a free smooth movement, the mqrement being in efi'eet, n limited uni? 'versal jointmove1||ent betw eentheidriving or chuck mexnber,- and. theairman tOl l1 member 1 is provided with a suitable rlrucl: holder memberrj shank. The driven M mba! 9 is provnlcd s. The parts of my improved fioatnig loul coupling member having a central opening in structural tgleta ils 'ispossihle without d6.-

disposed jaws receiving the jaws of said drivjaw a thrust pin Iiaviug spherirallv curved duced; and easily assembled.-

I have illustrated-and; described my invention in dctail -ingtl e .form in which I have embodied the same-in practice. I am aware, however, that. considerablevariation holder are s1mple,- areaeconomically pro'-'.

ing and driven members respectively: hearing halls for said piws', hall holdersltm.\(.l

o l f arranmsd in said coupling member awsv at each side of the driving and driven ioernher i bearings at its'ends. said driving and driven members being prmided with rut-rod hearing eats therefor disposed centrally said through which said pin isarrau'ged; and a shell having an lll\\':tl ll pro ecting flange :n its outer end threaded upon said driven I ml'i'nber, said driu'n men-dyer having a shoulder reacting with said flange.

2. .In a fl ating tool holder. the c mbination of the driving and driven members havin; tongueliv'e jaws thereon: a. coupling member having: two pairs of transwrselv disposed jaws n '.viug the jaws of said driving and driven members respectively: bearing balls for 52:1 jaws" ball holders loosetv"arranged in said coupling .meinla'l jaws at each sid of the driving and driven member jaws: a Lh'rust grin having Spherically curved hearings at iis rink, .id driving and driven memberbeing provided with curved bearing rulS lllurtl ll disposed centrally, said rou -ling vumnljwr havinga central opening through \\'i\irlv l pi arranged; an a shell mounted on said driven member.

3. in a floating tool holder. iln' ramiuination of the driving and driven member having jaws thereon; a coupling nn-ml-arr having pnvs disposed traiisversel of va h other receiving the jaws of said driving and driven members: hall mi-ariL-gs arranged in said coupling member iaws at melside of the driving and driven nn-mher jaws: a tlnust pin having curved bearings at its ends, said driving and driven memln-t'n' hr-- ing provided with curved bearing seats therefor disposed centrally, raid coupling lno-ll'li kil having a centra opening inrongh I which said pin is arranged; and a shell havag an inwardly projecting flange at its;

BEST AVAILABLE con/t outer end threaded upon said driven memher, said driven member having a shoulder enacting withsaid flange. 4. in a floating tool holder, the combination of the driving and driven members, having 'aws thereon; a. coupling member having ]t1WS disposed transversely of each other receiving the j aws of said driving and driven members; ball bearings arranged in said coupling member jaws-at each side of the driving and driven member jaws; a thrust pin. having curved hearings at its ends,-said driving and driven. members being provided with curved bearing sea-ts therefor disposed centrally, said coupling member having a central owning through which said pin is arrangcil; and a shell mounted on said driven member.

' 5.111 a floating tool holder the combination of the driving and driven members, having jaws thereon: acoupling member having jaws disposed transversely of earh other and adapted to court with the jaws f said driving-and driven members; a thrust pin luiving curved hearing at its ends, said driving and driv n members being provided with curved bearing seats therefor disposed, rentrallv, said coupling member having a ventral opening through which said pin is arraugedfand a shell having an inwardly projecting flange at its outer end threaded upon said driven mcinben said driven member having a shoulder cone-ting with said flange;

t'. in a floating tool holder. the combinahaviiig i:l\\'. thereon: a coupling member having jaw di posed transversely of each nllu-r :iml adapted in (.mlCt' \Yllll tliejaws Of said driving and driven memb rs', and a thrud pin inning curved bearings at its end said driving and driven members beiug pr vider with curved bearing seats theref r disposed ventrally. said coupling member having a central openingdhrougli \vhirh said pin is 'ar'anged T. in a floating tool holder, the combinati n of the dri\ing and driven membe s, having jaws thereon; a. coupling member having-jaws disposed'transversely of each other and adapted to coart with the jaws of said driving and driven members. there being ball hearings disp sed between said jaws of said driving andvimpliugmembershiperiuit lateral movement thereof: a thrust hearing member interposed betvwen r-aid driving and driven members, said thrust. bearing member bein independent of said coupling nu-mher; am a shell having an inwardly projecting flange at its outer end threaded upon said (lriven'member, said driu-n memher having a shoiilder coacting with said 100 tion ollllio. (hiring and driven Illt'llllltllS having jaws thereon; a coupling member In witness whereof, I have hereunto sethaving aws disposed transversely of each my hand and seal in the presence of twe 10- other and adapted to whet with the jaws of Witnesses. said driving and driven members; ande 5 thrust bearxng member interposed between CLARENCE O 1 said driving and driven members, said thrust Witnesses: beefing n'zemher being independent of said Lem G; Gnmnrmm; coupling member. M. PHINA WOODRUFF. 

